Analysis of Octagonal Shaped Multiband Microstrip Antenna with Defective Ground Technique for 5G and IoT Applications

Developments in 5G networks, the Internet of Things, and aerial radiating in GHz high-frequency spectrum areas are underway. This work uses the Defective Ground Structure (DGS) approach to integrate and analyze several octagonal micro strip patches parametrically. The suggested antenna has dimensions of 28 mm for width and 32 mm for length, with a 1.57 mm height and RT duroid 5880 substrate used as the dielectric material. Investigate different design iterations, keeping in mind that the DGS approach and many octagon-shaped patches yield the best outcomes for this proposed design structure. The value of the return loss (S11) parameter is examined. At 30.87 GHz, the voltage standing wave ratio (VSWR) is 1.19 and the peak gain is 23.69 dB. The distributions of current, electric field, and input impedance at 50Ω are observed. X, Ku, K, Ka, V bands applications can greatly benefit from the projected antenna.